MPC8308VMADDA datasheet(16/88 Pages) FREESCALE

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MPC8308 PowerQUICC II Pro Processor Hardware Specification, Rev. 0

Freescale Semiconductor

Ethernet: Three-Speed Ethernet, MII Management

8.1.1

eTSEC DC Electrical Characteristics

All MII and RGMII drivers and receivers comply with the DC parametric attributes specified in Table 21

and Table 22. The RGMII signals are based on a 2.5-V CMOS interface voltage as defined by JEDEC

EIA/JESD8-5.

8.2

MII and RGMII AC Timing Specifications

The AC timing specifications for MII and RGMII are presented in this section.

8.2.1

MII AC Timing Specifications

This section describes the MII transmit and receive AC timing specifications.

Table 21. MII DC Electrical Characteristics

Parameter

Symbol

Conditions

Min

Max

Unit

Supply voltage 3.3 V

LVDD

—

3.0

3.6

Output high voltage

VOH

IOH = –4.0 mA

LVDD = Min

2.40

LVDD + 0.3

Output low voltage

VOL

IOL = 4.0 mA

LVDD= Min

VSS

0.50

Input high voltage

VIH

——

2.1

LVDD + 0.3

Input low voltage

VIL

—

–0.3

0.90

Input high current

IIH

VIN

1 = LV

—40

μA

Input low current

IIL

VIN

1 = VSS

–600

—

μA

Note:

1. The symbol VIN, in this case, represents the LVIN symbol referenced in Table 1 and Table 2.

Table 22. RGMII DC Electrical Characteristics

Parameters

Symbol

Conditions

Min

Max

Unit

Supply voltage 2.5 V

LVDD

—2.37

2.63

Output high voltage

VOH

IOH = –1.0 mA

LVDD = Min

2.00

LVDD + 0.3

Output low voltage

VOL

IOL = 1.0 mA

LVDD= Min

VSS – 0.3

0.40

Input high voltage

VIH

—LVDD = Min

1.7

LVDD + 0.3

Input low voltage

VIL

—LVDD = Min

–0.3

0.70

Input high current

IIH

VIN

1 = LV

—15

μA

Input low current

IIL

VIN

1 = VSS

–15

—

μA

Note:

1. Note that the symbol VIN, in this case, represents the LVIN symbol referenced in Table 1 and Table 2.

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